US3524283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding machinery
Assignee: Textron Inc
•
Filing: 1967-01-09
•
Granted: 1970-08-18
•
Expires: 1987-01-09
Abstract
No abstract record available.
Inventors
- 👤 Robert S Jones Springfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:08
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/02; B24B5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1872667A
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US2644277A
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US2674831A
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US2807916A
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US2909009A
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US2924913A
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US3315416A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-17 | 1974-02-16 | 1974-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-17 | 1978-02-16 | 1978-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-17 | 1982-02-16 | 1982-08-18 | $7700.00 | Window Closed / Lapsed |